本文整理汇总了C++中pmd_addr_end函数的典型用法代码示例。如果您正苦于以下问题：C++ pmd_addr_end函数的具体用法？C++ pmd_addr_end怎么用？C++ pmd_addr_end使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了pmd_addr_end函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: unmap_range
static void unmap_range(struct kvm *kvm, pgd_t *pgdp,
unsigned long long start, u64 size)
{
pgd_t *pgd;
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
unsigned long long addr = start, end = start + size;
u64 next;
while (addr < end) {
pgd = pgdp + pgd_index(addr);
pud = pud_offset(pgd, addr);
if (pud_none(*pud)) {
addr = pud_addr_end(addr, end);
continue;
}
if (pud_huge(*pud)) {
/*
* If we are dealing with a huge pud, just clear it and
* move on.
*/
clear_pud_entry(kvm, pud, addr);
addr = pud_addr_end(addr, end);
continue;
}
pmd = pmd_offset(pud, addr);
if (pmd_none(*pmd)) {
addr = pmd_addr_end(addr, end);
continue;
}
if (!kvm_pmd_huge(*pmd)) {
pte = pte_offset_kernel(pmd, addr);
clear_pte_entry(kvm, pte, addr);
next = addr + PAGE_SIZE;
}
/*
* If the pmd entry is to be cleared, walk back up the ladder
*/
if (kvm_pmd_huge(*pmd) || page_empty(pte)) {
clear_pmd_entry(kvm, pmd, addr);
next = pmd_addr_end(addr, end);
if (page_empty(pmd) && !page_empty(pud)) {
clear_pud_entry(kvm, pud, addr);
next = pud_addr_end(addr, end);
}
}
addr = next;
}
}
开发者ID:AD5GB，项目名称:kernel_n5_3.10-experimental，代码行数:55，代码来源:mmu.c
示例2: kasan_populate_pud
static void __init kasan_populate_pud(pud_t *pud, unsigned long addr,
unsigned long end, int nid)
{
pmd_t *pmd;
unsigned long next;
if (pud_none(*pud)) {
void *p;
if (boot_cpu_has(X86_FEATURE_GBPAGES) &&
((end - addr) == PUD_SIZE) &&
IS_ALIGNED(addr, PUD_SIZE)) {
p = early_alloc(PUD_SIZE, nid, false);
if (p && pud_set_huge(pud, __pa(p), PAGE_KERNEL))
return;
else if (p)
memblock_free(__pa(p), PUD_SIZE);
}
p = early_alloc(PAGE_SIZE, nid, true);
pud_populate(&init_mm, pud, p);
}
pmd = pmd_offset(pud, addr);
do {
next = pmd_addr_end(addr, end);
if (!pmd_large(*pmd))
kasan_populate_pmd(pmd, addr, next, nid);
} while (pmd++, addr = next, addr != end);
}
开发者ID:Anjali05，项目名称:linux，代码行数:30，代码来源:kasan_init_64.c
示例3: create_hyp_pmd_mappings
static int create_hyp_pmd_mappings(pud_t *pud, unsigned long start,
unsigned long end, unsigned long pfn,
pgprot_t prot)
{
pmd_t *pmd;
pte_t *pte;
unsigned long addr, next;
addr = start;
do {
pmd = pmd_offset(pud, addr);
BUG_ON(pmd_sect(*pmd));
if (pmd_none(*pmd)) {
pte = pte_alloc_one_kernel(NULL, addr);
if (!pte) {
kvm_err("Cannot allocate Hyp pte\n");
return -ENOMEM;
}
pmd_populate_kernel(NULL, pmd, pte);
get_page(virt_to_page(pmd));
kvm_flush_dcache_to_poc(pmd, sizeof(*pmd));
}
next = pmd_addr_end(addr, end);
create_hyp_pte_mappings(pmd, addr, next, pfn, prot);
pfn += (next - addr) >> PAGE_SHIFT;
} while (addr = next, addr != end);
return 0;
}
开发者ID:ManCheol，项目名称:kernel，代码行数:33，代码来源:mmu.c
示例4: gup_pmd_range
static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end,
int write, struct page **pages, int *nr)
{
unsigned long next;
pmd_t *pmdp;
pmdp = pmd_offset(&pud, addr);
do {
pmd_t pmd = ACCESS_ONCE(*pmdp);
next = pmd_addr_end(addr, end);
/*
* If we find a splitting transparent hugepage we
* return zero. That will result in taking the slow
* path which will call wait_split_huge_page()
* if the pmd is still in splitting state
*/
if (pmd_none(pmd) || pmd_trans_splitting(pmd))
return 0;
if (pmd_huge(pmd) || pmd_large(pmd)) {
if (!gup_hugepte((pte_t *)pmdp, PMD_SIZE, addr, next,
write, pages, nr))
return 0;
} else if (is_hugepd(pmdp)) {
if (!gup_hugepd((hugepd_t *)pmdp, PMD_SHIFT,
addr, next, write, pages, nr))
return 0;
} else if (!gup_pte_range(pmd, addr, next, write, pages, nr))
return 0;
} while (pmdp++, addr = next, addr != end);
return 1;
}
开发者ID:AdaLovelance，项目名称:lxcGrsecKernels，代码行数:33，代码来源:gup.c
示例5: gup_pmd_range
static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end,
int write, struct page **pages, int *nr)
{
unsigned long next;
pmd_t *pmdp;
pmdp = pmd_offset(&pud, addr);
do {
pmd_t pmd = *pmdp;
next = pmd_addr_end(addr, end);
if (pmd_none(pmd))
return 0;
if (pmd_huge(pmd)) {
if (!gup_hugepte((pte_t *)pmdp, PMD_SIZE, addr, next,
write, pages, nr))
return 0;
} else if (is_hugepd(pmdp)) {
if (!gup_hugepd((hugepd_t *)pmdp, PMD_SHIFT,
addr, next, write, pages, nr))
return 0;
} else if (!gup_pte_range(pmd, addr, next, write, pages, nr))
return 0;
} while (pmdp++, addr = next, addr != end);
return 1;
}
开发者ID:0x000000FF，项目名称:Linux4Edison，代码行数:27，代码来源:gup.c
示例6: idmap_add_pmd
static void idmap_add_pmd(pud_t *pud, unsigned long addr, unsigned long end,
unsigned long prot)
{
pmd_t *pmd;
unsigned long next;
if (pud_none_or_clear_bad(pud) || (pud_val(*pud) & L_PGD_SWAPPER)) {
pmd = pmd_alloc_one(&init_mm, addr);
if (!pmd) {
pr_warning("Failed to allocate identity pmd.\n");
return;
}
/*
* Copy the original PMD to ensure that the PMD entries for
* the kernel image are preserved.
*/
if (!pud_none(*pud))
memcpy(pmd, pmd_offset(pud, 0),
PTRS_PER_PMD * sizeof(pmd_t));
pud_populate(&init_mm, pud, pmd);
pmd += pmd_index(addr);
} else
pmd = pmd_offset(pud, addr);
do {
next = pmd_addr_end(addr, end);
*pmd = __pmd((addr & PMD_MASK) | prot);
flush_pmd_entry(pmd);
} while (pmd++, addr = next, addr != end);
}
开发者ID:0x000000FF，项目名称:Linux4Edison，代码行数:30，代码来源:idmap.c
示例7: copy_pmd
static int copy_pmd(pud_t *dst_pudp, pud_t *src_pudp, unsigned long start,
unsigned long end)
{
pmd_t *src_pmdp;
pmd_t *dst_pmdp;
unsigned long next;
unsigned long addr = start;
if (pud_none(READ_ONCE(*dst_pudp))) {
dst_pmdp = (pmd_t *)get_safe_page(GFP_ATOMIC);
if (!dst_pmdp)
return -ENOMEM;
pud_populate(&init_mm, dst_pudp, dst_pmdp);
}
dst_pmdp = pmd_offset(dst_pudp, start);
src_pmdp = pmd_offset(src_pudp, start);
do {
pmd_t pmd = READ_ONCE(*src_pmdp);
next = pmd_addr_end(addr, end);
if (pmd_none(pmd))
continue;
if (pmd_table(pmd)) {
if (copy_pte(dst_pmdp, src_pmdp, addr, next))
return -ENOMEM;
} else {
set_pmd(dst_pmdp,
__pmd(pmd_val(pmd) & ~PMD_SECT_RDONLY));
}
} while (dst_pmdp++, src_pmdp++, addr = next, addr != end);
return 0;
}
开发者ID:CaiBirdZhang，项目名称:linux，代码行数:34，代码来源:hibernate.c
示例8: vmemmap_populate
/*
* Initialise the sparsemem vmemmap using huge-pages at the PMD level.
*/
int __meminit vmemmap_populate(struct page *start_page,
unsigned long size, int node)
{
unsigned long addr = (unsigned long)start_page;
unsigned long end = (unsigned long)(start_page + size);
unsigned long next;
pgd_t *pgd;
pud_t *pud;
pmd_t *pmd;
for (; addr < end; addr = next) {
next = pmd_addr_end(addr, end);
pgd = vmemmap_pgd_populate(addr, node);
if (!pgd)
return -ENOMEM;
pud = vmemmap_pud_populate(pgd, addr, node);
if (!pud)
return -ENOMEM;
pmd = pmd_offset(pud, addr);
if (pmd_none(*pmd)) {
pte_t entry;
void *p = vmemmap_alloc_block(PMD_SIZE, node);
if (!p)
return -ENOMEM;
entry = pfn_pte(__pa(p) >> PAGE_SHIFT, PAGE_KERNEL);
mk_pte_huge(entry);
set_pmd(pmd, __pmd(pte_val(entry)));
printk(KERN_DEBUG " [%lx-%lx] PMD ->%p on node %d\n",
addr, addr + PMD_SIZE - 1, p, node);
} else
开发者ID:PennPanda，项目名称:linux-repo，代码行数:37，代码来源:init_64.c
示例9: ioremap_pmd_range
static inline int ioremap_pmd_range(pud_t *pud, unsigned long addr,
unsigned long end, phys_addr_t phys_addr, pgprot_t prot)
{
pmd_t *pmd;
unsigned long next;
phys_addr -= addr;
pmd = pmd_alloc(&init_mm, pud, addr);
if (!pmd)
return -ENOMEM;
do {
next = pmd_addr_end(addr, end);
if (ioremap_pmd_enabled() &&
((next - addr) == PMD_SIZE) &&
IS_ALIGNED(phys_addr + addr, PMD_SIZE)) {
if (pmd_set_huge(pmd, phys_addr + addr, prot))
continue;
}
if (ioremap_pte_range(pmd, addr, next, phys_addr + addr, prot))
return -ENOMEM;
} while (pmd++, addr = next, addr != end);
return 0;
}
开发者ID:ReneNyffenegger，项目名称:linux，代码行数:25，代码来源:ioremap.c
示例10: do_mincore
/*
* Do a chunk of "sys_mincore()". We've already checked
* all the arguments, we hold the mmap semaphore: we should
* just return the amount of info we're asked for.
*/
static long do_mincore(unsigned long addr, unsigned long pages, unsigned char *vec)
{
struct vm_area_struct *vma;
unsigned long end;
vma = find_vma(current->mm, addr);
if (!vma || addr < vma->vm_start)
return -ENOMEM;
end = min(vma->vm_end, addr + (pages << PAGE_SHIFT));
if (is_vm_hugetlb_page(vma)) {
mincore_hugetlb_page_range(vma, addr, end, vec);
return (end - addr) >> PAGE_SHIFT;
}
end = pmd_addr_end(addr, end);
if (is_vm_hugetlb_page(vma))
mincore_hugetlb_page_range(vma, addr, end, vec);
else
mincore_page_range(vma, addr, end, vec);
return (end - addr) >> PAGE_SHIFT;
}
开发者ID:1yankeedt，项目名称:D710BST_FL24_Kernel，代码行数:30，代码来源:mincore.c
示例11: alloc_init_pmd
static void alloc_init_pmd(pud_t *pud, unsigned long addr, unsigned long end,
phys_addr_t phys, pgprot_t prot,
phys_addr_t (*pgtable_alloc)(void))
{
pmd_t *pmd;
unsigned long next;
/*
* Check for initial section mappings in the pgd/pud and remove them.
*/
if (pud_none(*pud) || pud_sect(*pud)) {
phys_addr_t pmd_phys;
BUG_ON(!pgtable_alloc);
pmd_phys = pgtable_alloc();
pmd = pmd_set_fixmap(pmd_phys);
if (pud_sect(*pud)) {
/*
* need to have the 1G of mappings continue to be
* present
*/
split_pud(pud, pmd);
}
__pud_populate(pud, pmd_phys, PUD_TYPE_TABLE);
flush_tlb_all();
pmd_clear_fixmap();
}
BUG_ON(pud_bad(*pud));
pmd = pmd_set_fixmap_offset(pud, addr);
do {
next = pmd_addr_end(addr, end);
/* try section mapping first */
if (((addr | next | phys) & ~SECTION_MASK) == 0 &&
block_mappings_allowed(pgtable_alloc)) {
pmd_t old_pmd =*pmd;
pmd_set_huge(pmd, phys, prot);
/*
* Check for previous table entries created during
* boot (__create_page_tables) and flush them.
*/
if (!pmd_none(old_pmd)) {
flush_tlb_all();
if (pmd_table(old_pmd)) {
phys_addr_t table = pmd_page_paddr(old_pmd);
if (!WARN_ON_ONCE(slab_is_available()))
memblock_free(table, PAGE_SIZE);
}
}
} else {
alloc_init_pte(pmd, addr, next, __phys_to_pfn(phys),
prot, pgtable_alloc);
}
phys += next - addr;
} while (pmd++, addr = next, addr != end);
pmd_clear_fixmap();
}
开发者ID:1314cc，项目名称:linux，代码行数:57，代码来源:mmu.c
示例12: kasan_pmd_populate
static void __init kasan_pmd_populate(pud_t *pudp, unsigned long addr,
unsigned long end, int node, bool early)
{
unsigned long next;
pmd_t *pmdp = kasan_pmd_offset(pudp, addr, node, early);
do {
next = pmd_addr_end(addr, end);
kasan_pte_populate(pmdp, addr, next, node, early);
} while (pmdp++, addr = next, addr != end && pmd_none(READ_ONCE(*pmdp)));
}
开发者ID:150balbes，项目名称:Amlogic_s905-kernel，代码行数:11，代码来源:kasan_init.c
示例13: unmap_range
static void unmap_range(struct kvm *kvm, pgd_t *pgdp,
unsigned long long start, u64 size)
{
pgd_t *pgd;
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
unsigned long long addr = start, end = start + size;
u64 next;
while (addr < end) {
pgd = pgdp + pgd_index(addr);
pud = pud_offset(pgd, addr);
if (pud_none(*pud)) {
addr = pud_addr_end(addr, end);
continue;
}
pmd = pmd_offset(pud, addr);
if (pmd_none(*pmd)) {
addr = pmd_addr_end(addr, end);
continue;
}
pte = pte_offset_kernel(pmd, addr);
clear_pte_entry(kvm, pte, addr);
next = addr + PAGE_SIZE;
/* If we emptied the pte, walk back up the ladder */
if (page_empty(pte)) {
clear_pmd_entry(kvm, pmd, addr);
next = pmd_addr_end(addr, end);
if (page_empty(pmd) && !page_empty(pud)) {
clear_pud_entry(kvm, pud, addr);
next = pud_addr_end(addr, end);
}
}
addr = next;
}
}
开发者ID:ManCheol，项目名称:kernel，代码行数:41，代码来源:mmu.c
示例14: alloc_init_pmd
static void alloc_init_pmd(struct mm_struct *mm, pud_t *pud,
unsigned long addr, unsigned long end,
phys_addr_t phys, pgprot_t prot,
void *(*alloc)(unsigned long size))
{
pmd_t *pmd;
unsigned long next;
/*
* Check for initial section mappings in the pgd/pud and remove them.
*/
if (pud_none(*pud) || pud_sect(*pud)) {
pmd = alloc(PTRS_PER_PMD * sizeof(pmd_t));
if (pud_sect(*pud)) {
/*
* need to have the 1G of mappings continue to be
* present
*/
split_pud(pud, pmd);
}
pud_populate(mm, pud, pmd);
flush_tlb_all();
}
BUG_ON(pud_bad(*pud));
pmd = pmd_offset(pud, addr);
do {
next = pmd_addr_end(addr, end);
/* try section mapping first */
if (((addr | next | phys) & ~SECTION_MASK) == 0) {
pmd_t old_pmd =*pmd;
set_pmd(pmd, __pmd(phys |
pgprot_val(mk_sect_prot(prot))));
/*
* Check for previous table entries created during
* boot (__create_page_tables) and flush them.
*/
if (!pmd_none(old_pmd)) {
flush_tlb_all();
if (pmd_table(old_pmd)) {
phys_addr_t table = __pa(pte_offset_map(&old_pmd, 0));
if (!WARN_ON_ONCE(slab_is_available()))
memblock_free(table, PAGE_SIZE);
}
}
} else {
alloc_init_pte(pmd, addr, next, __phys_to_pfn(phys),
prot, alloc);
}
phys += next - addr;
} while (pmd++, addr = next, addr != end);
}
开发者ID:BrainFucking，项目名称:linux，代码行数:52，代码来源:mmu.c
示例15: msync_pmd_range
static inline unsigned long msync_pmd_range(struct vm_area_struct *vma,
pud_t *pud, unsigned long addr, unsigned long end)
{
pmd_t *pmd;
unsigned long next;
unsigned long ret = 0;
pmd = pmd_offset(pud, addr);
do {
next = pmd_addr_end(addr, end);
if (pmd_none_or_clear_bad(pmd))
continue;
ret += msync_pte_range(vma, pmd, addr, next);
} while (pmd++, addr = next, addr != end);
return ret;
}
开发者ID:FatSunHYS，项目名称:OSCourseDesign，代码行数:16，代码来源:msync.c
示例16: kasan_early_pmd_populate
static void __init kasan_early_pmd_populate(pud_t *pud,
unsigned long addr,
unsigned long end)
{
pmd_t *pmd;
unsigned long next;
if (pud_none(*pud))
__pud_populate(pud, __pa_symbol(kasan_zero_pmd), PMD_TYPE_TABLE);
pmd = pmd_offset_kimg(pud, addr);
do {
next = pmd_addr_end(addr, end);
kasan_early_pte_populate(pmd, addr, next);
} while (pmd++, addr = next, addr != end && pmd_none(*pmd));
}
开发者ID:AshishNamdev，项目名称:linux，代码行数:16，代码来源:kasan_init.c
示例17: clear_pmd_range
static unsigned long clear_pmd_range(struct vm_area_struct *vma, pud_t *pud,
unsigned long addr, unsigned long end)
{
pmd_t *pmd;
unsigned long next;
pmd = pmd_offset(pud, addr);
do {
next = pmd_addr_end(addr, end);
if (pmd_none(*pmd))
continue;
next = clear_pte_range(vma, pmd, addr, next);
} while (pmd++, addr = next, addr != end);
return addr;
}
开发者ID:lastweek，项目名称:NVM，代码行数:16，代码来源:migrate.c
示例18: kasan_early_pmd_populate
static void __init kasan_early_pmd_populate(pud_t *pud,
unsigned long addr,
unsigned long end)
{
pmd_t *pmd;
unsigned long next;
if (pud_none(*pud))
pud_populate(&init_mm, pud, kasan_zero_pmd);
pmd = pmd_offset_kimg(pud, addr);
do {
next = pmd_addr_end(addr, end);
kasan_early_pte_populate(pmd, addr, next);
} while (pmd++, addr = next, addr != end && pmd_none(*pmd));
}
开发者ID:020gzh，项目名称:linux，代码行数:16，代码来源:kasan_init.c
示例19: check_pmd_range
static inline int check_pmd_range(struct mm_struct *mm, pud_t *pud,
unsigned long addr, unsigned long end, unsigned long *nodes)
{
pmd_t *pmd;
unsigned long next;
pmd = pmd_offset(pud, addr);
do {
next = pmd_addr_end(addr, end);
if (pmd_none_or_clear_bad(pmd))
continue;
if (check_pte_range(mm, pmd, addr, next, nodes))
return -EIO;
} while (pmd++, addr = next, addr != end);
return 0;
}
开发者ID:kzlin129，项目名称:tt-gpl，代码行数:16，代码来源:mempolicy.c
示例20: unuse_pmd_range
static inline int unuse_pmd_range(struct vm_area_struct *vma, pud_t *pud,
unsigned long addr, unsigned long end,
swp_entry_t entry, struct page *page)
{
pmd_t *pmd;
unsigned long next;
pmd = pmd_offset(pud, addr);
do {
next = pmd_addr_end(addr, end);
if (pmd_none_or_clear_bad(pmd))
continue;
if (unuse_pte_range(vma, pmd, addr, next, entry, page))
return 1;
} while (pmd++, addr = next, addr != end);
return 0;
}
开发者ID:acassis，项目名称:emlinux-ssd1935，代码行数:17，代码来源:swapfile.c
注：本文中的pmd_addr_end函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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